US5303550A - Apparatus and method for forming elastic corespun yarn - Google Patents
Apparatus and method for forming elastic corespun yarn Download PDFInfo
- Publication number
- US5303550A US5303550A US07/845,050 US84505092A US5303550A US 5303550 A US5303550 A US 5303550A US 84505092 A US84505092 A US 84505092A US 5303550 A US5303550 A US 5303550A
- Authority
- US
- United States
- Prior art keywords
- yarn
- package
- core yarn
- spindle
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
- D02G3/28—Doubled, plied, or cabled threads
- D02G3/285—Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn
Definitions
- This invention relates to an apparatus and method for forming an elastic corespun yarn and more particularly to an apparatus and method for forming an elastic corespun yarn wherein a nonelastic covering yarn is drawn into wrapping engagement with the elastic core yarn for forming an elastic corespun yarn.
- a hollow rotating spindle carries a supply package of nylon or other nonelastic covering yarn.
- An elastic core yarn such as spandex is passed through the center of the hollow spindle.
- the nylon covering yarn is unwound from the rotating supply package and is wrapped around the elastic core yarn to form an elastic corespun yarn.
- the uninterrupted length of elastic corespun yarn formed by this apparatus is limited by the size of the covering yarn supply package which can be carried by the rotating spindle. Because the covering yarn is used at a much faster rate than the core yarn, the winding apparatus must frequently be stopped to replenish the covering yarn supply package.
- the elastic core yarn is metered from a stationary supply package carried by a spindle.
- the elastic core yarn then is wrapped by the covering yarn.
- a core yarn package of elastic yarn is carried by a driven spindle while the drawn elastic core yarn is wrapped by the covering yarn.
- a tension device provides the proper amount of tension to the elastic core yarn during wrapping.
- the aforementioned apparatus provide for the production of larger units of corespun yarn with the attendant fewer winding stops necessary for replenishing a yarn supply package of the winding yarn. These apparatus, however, mandate operation at a decreased winding speed. Operation of the apparatus at higher spindle speeds increases the centrifugal force of the covering yarn causing the covering yarn to break. Operation of this type of apparatus at high spindle speeds is also limited because of the weight of the elastic core yarn unwinding mechanism.
- Another object of this invention is to provide an apparatus and method for forming an elastic corespun yarn wherein a nonelastic covering yarn is drawn from a supply package through the spindle and radially outwardly, upwardly and inwardly in a confined passage around and in spaced relation to a core yarn package supported by the spindle and then into wrapping engagement with the core yarn.
- an apparatus and method for forming an elastic corespun yarn which is characterized by having increased winding speed and the ability to produce a larger package of corespun yarn so that a covering yarn supply package of any desired size may be utilized to produce elastic corespun yarn of a length limited only by the length of the elastic core yarn which can be supplied by the core yarn package.
- the covering yarn is confined in its path of travel around the core yarn package thereby preventing breakage due to centrifugal force and air resistance even at very high spindle speeds.
- the apparatus includes a spindle holding frame having a spindle rotatably mounted thereon for rotation about a longitudinal axis.
- Drive means is operatively connected to the spindle for rotating the spindle about the axis.
- a core yarn package of relatively elastic yarn is carried by the spindle coaxially therewith. The core yarn package is held stationary relative to the spindle as the spindle rotates.
- a guide passageway is defined in the lower portion of the spindle along the longitudinal axis thereof for a predetermined distance upwardly from the lower end of the spindle and radially outwardly to the periphery of the spindle.
- Yarn confinement means in the form of a cylinder having eyelets positioned therein is mounted on the spindle for rotation therewith and defines a confined yarn guide passageway from the spindle guide passageway outwardly, upwardly and inwardly around and in spaced relation to a core yarn package supported on the core yarn support means for confining and guiding the covering yarn from the longitudinal axis of the spindle outwardly, upwardly and inwardly of the core yarn package.
- Means is provided for withdrawing an elastic core yarn from the core yarn package supported by the spindle and for feeding the elastic core yarn in a direction substantially along the spindle longitudinal axis thereof. Means is also included for withdrawing a nonelastic covering yarn from a supply package, through the spindle and yarn confinement means guide passageways, and into wrapping engagement with the elastic core yarn for forming an elastic corespun yarn.
- FIG. 1 is a fragmentary elevational view of the apparatus for forming a corespun yarn in accordance with the present invention
- FIG. 2 is an enlarged fragmentary sectional view of the spindle in accordance with the present invention.
- FIG. 3 is an enlarged partial sectional view of the dotted line area marked 3 in FIG. 2 and showing in detail the formed corespun yarn;
- FIG. 4 is an enlarged vertical sectional view of the tension control device shown in FIG. 2.
- FIG. 1 illustrates the apparatus of the present invention for forming an elastic corespun yarn, broadly indicated at C, wherein the apparatus is characterized by having an increased winding speed and the ability to produce a larger package of corespun yarn C.
- the apparatus includes a spindle assembly, broadly indicated at 15, which includes a spindle holding frame 16 with respective upper and lower cantilevered arms 17, 18. It is to be understood that a plurality of these spindle assemblies 15 are provided in side-by-side relationship in two full rows along the outside of an elastic yarn spindle wrapping machine.
- a spindle is rotatively mounted in the cantilevered arms 17, 18 by means of respective upper and lower bearing assemblies 21, 22 so that the spindle defines a longitudinal axis extending through both of the arms. Additional bearing assemblies 23, 24 rotatably support the lower portion of the spindle 20.
- the spindle 20 includes a lower spindle portion 30 mounted for rotation in the three sets of bearings 22, 23 and 24.
- the lower spindle portion 30 is hollow and includes a lower guide passageway 31 defining an axial passageway extending in the lower portion of the spindle, and an exit orifice or passageway 32 exiting radially from the spindle 20.
- An upper hollow spindle portion 35 is mounted for rotation in the upper cantilevered arm 17 by the upper bearing assembly 21 therein.
- the upper spindle portion 35 includes an upper guide passageway 40 extending coaxially through the top portion and exiting coaxially therefrom.
- the medial portion of the spindle 20 includes respective top and bottom conical caps 41, 42 and a cylinder 45 is secured to the caps 41, 42 and coaxially therebetween so that as the spindle 20 rotates, the cylinder 45 rotates therewith.
- the cylinder 45 is positioned so that the radially extending exit orifice 32 is positioned within the confines of the cylinder 45.
- a first eyelet 46 is fixed inside the cylinder 45 where the lower cap 41 and cylinder 45 connect.
- a second eyelet 47 is fixed above the first eyelet 46. Both eyelets 46, 47 and the cylinder 45 define a confined yarn guide passageway from the spindle guide passageway 31 and orifice 32 outwardly, upwardly and inwardly in the cylinder 45.
- a tube (not shown) can extend between the exit orifice 32 and the first eyelet 46, between the eyelets 46, 47 and between eyelet 47 and the upper guide passageway 40 to facilitate threading by vacuum drawing instead of by conventional mechanical threading apparatus.
- the cylinder 45 is made from a strong, lightweight material, such as titanium or a composite, lightweight material such as carbon fiber.
- Drive means in the form of an endless drive belt 50, is operatively connected to the spindle 20 for rotating the spindle 20 about the longitudinal axis.
- the belt 50 engages a cylindrical drive hub 51 positioned on the lower spindle portion 30. As the belt 50 moves at a high speed, it engages the lower spindle portion 30 to rotate the spindle at a very high RPM--as much as 50,000 to 60,000 RPM.
- a yarn package support carrier 60 is positioned on the upper part of the lower spindle portion 30 and extends above the radially extending exit orifice 32.
- the support carrier 60 is inside the confines of the cylinder 45 for supporting, in substantial axial alignment with the spindle 20, a core yarn package 61 of relatively elastic yarn 63, preferably spandex.
- the yarn package support carrier 60 is provided with spaced upper and lower bearings 62 which receive and support the core yarn package 61 so that the elastic core yarn 63 may be withdrawn therefrom.
- the yarn package support carrier 60 includes a permanent magnet 65 positioned therewithin.
- a cantilevered support arm 66 is provided adjacent the outer perimeter of the cylinder 45 and has a free end partially surrounding the cylinder 45.
- a magnet 70 (FIG.
- the magnet 70 provides an attracting magnetic force for attracting the permanent magnet 65 positioned on the yarn package support carrier 60 and for holding the yarn package support carrier 60 stationary relative to the spindle 20 as the spindle 20 rotates.
- a yarn tension applicator or control device is positioned on the upper end of the spool of the core yarn package 61 to provide the required amount of tension to the core yarn 63 as it is drawn off the yarn package 61.
- Various types of conventional tension control such as the illustrated disc type, can be used.
- the illustrated tension control device 80 includes a support bracket 81 fixed at its lower end on the upper portion of a thrust bearing 83 and positioned at the lower portion of the housing. The thrust bearing is dimensioned for receipt onto the spool 61a of the yarn package 61.
- the thrust bearing 83 allows the yarn tension control device 80 to rotate as needed during the wrapping operation of the covering yarn 12 onto the core yarn 63.
- the yarn tension control device 80 includes upper and lower grommets 86, 87 for allowing the core yarn 63 to pass therethrough with minimal friction.
- Positioned in the housing are a pair of discs 90, 91 engaging each other and supported by a threaded shaft 92 extending through the bracket 81.
- a yarn passageway 93 extends between the discs 90, 91 and the shaft 92 for allowing the core yarn 63 to pass therebetween.
- a spring 95 is positioned between one of the discs and a wing nut 96, and pressure may be increased or decreased against the other disc by turning the wing nut 96 positioned on the threaded shaft 92. Pressure is increased by turning the wing nut 96 inward to increase spring pressure against the discs, thus resulting in increased tension on the core yarn drawn therebetween. When the wing nut 96 is turned outward, spring pressure is decreased resulting in a decreased tension on the core yarn. If a magnetic tensioner is used, tension automatically can be adjusted. With the illustrated embodiment, an opening (not shown) can be provided in the cylinder wall for allowing an operator to manually adjust tension.
- a lower set of rolls 98 are positioned beneath the spindle 20 for aiding in guiding a covering yarn 63 upwardly through the lower guide passageway 31.
- An upper set of rolls 99 working with a take-up roll 100 draw the formed corespun yarn C.
- a covering yarn is threaded through the lower set of rolls 98 into the lower guide passageway 31, outward into the cylinder 45 and through the eyelets 46, 47.
- vacuum may be used for threading the yarn.
- a mechanical threading apparatus is used.
- the covering yarn 12 is drawn in wrapping engagement with the core yarn 63 and the resulting corespun yarn C is drawn upward through the upper guide passageway 40 to the upper set of draft rolls 99 where it is wound on the core of a take-up roll 100.
- the spindle 20 is rotated at a high RPM ranging from 50,000 to 60,000 RPM.
- the upper set of rolls 99 pull the formed corespun yarn C upwardly while pulling the core yarn 63 and the covering yarn 12 from their respective yarn packages 61, 11.
- the covering yarn 12 is centrifugally forced against the inside wall of the cylinder.
- the cylinder 45 and eyelets 46, 47 guide the covering yarn 12 to a restricted diameter for preventing breakage of the covering yarn.
- the covering yarn rotates with the cylinder and is forced into wrapping engagement with the core yarn to form the resulting corespun yarn (FIG. 3).
- the magnet 70 is energized for preventing rotation of the yarn package support carrier 60 having the core yarn package supported thereon.
- the invention offers several benefits over other prior art apparatus. Because the covering yarn package is not carried by the spindle, longer runs of the apparatus can be accomplished without changing the yarn packages. Additionally, the cylinder in which the covering yarn is confined during its centrifugal, advance upward prevents breakage of the covering yarn during high speed spindle operation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/845,050 US5303550A (en) | 1990-09-25 | 1992-03-03 | Apparatus and method for forming elastic corespun yarn |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58800390A | 1990-09-25 | 1990-09-25 | |
US07/845,050 US5303550A (en) | 1990-09-25 | 1992-03-03 | Apparatus and method for forming elastic corespun yarn |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US58800390A Continuation | 1990-09-25 | 1990-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
US5303550A true US5303550A (en) | 1994-04-19 |
Family
ID=24352052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/845,050 Expired - Fee Related US5303550A (en) | 1990-09-25 | 1992-03-03 | Apparatus and method for forming elastic corespun yarn |
Country Status (3)
Country | Link |
---|---|
US (1) | US5303550A (en) |
AU (1) | AU8664191A (en) |
WO (1) | WO1992005302A1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5515671A (en) * | 1993-03-11 | 1996-05-14 | Hamel Ag | Method for building a specific yarn reserve at a rotating balloon limiter of a multiple twisting spindle and a multiple twisting spindle with rotating balloon limiter |
US6298648B1 (en) * | 1997-06-05 | 2001-10-09 | D'agnolo Armando | Multiple twist spindle |
AU764940B2 (en) * | 1998-12-23 | 2003-09-04 | Adria Limited | Yarn covering apparatus and method |
US20080268734A1 (en) * | 2007-04-17 | 2008-10-30 | Cone Mills Llc | Elastic composite yarns and woven fabrics made therefrom, and methods and apparatus for making the same |
US20090145533A1 (en) * | 2003-04-25 | 2009-06-11 | Textronics Inc. | Electrically conductive elastic composite yarn, methods for making the same, and articles incorporating the same |
WO2010148517A1 (en) | 2009-06-26 | 2010-12-29 | Asteia Technology Inc. | Non-braided, textile-reinforced hollow fiber membrane |
US8529814B2 (en) | 2010-12-15 | 2013-09-10 | General Electric Company | Supported hollow fiber membrane |
US8999454B2 (en) | 2012-03-22 | 2015-04-07 | General Electric Company | Device and process for producing a reinforced hollow fibre membrane |
US9022229B2 (en) | 2012-03-09 | 2015-05-05 | General Electric Company | Composite membrane with compatible support filaments |
US9132390B2 (en) | 2009-03-26 | 2015-09-15 | Bl Technologies Inc. | Non-braided reinforced holow fibre membrane |
US9221020B2 (en) | 2010-09-15 | 2015-12-29 | Bl Technologies, Inc. | Method to make yarn-reinforced hollow fiber membranes around a soluble core |
US9227362B2 (en) | 2012-08-23 | 2016-01-05 | General Electric Company | Braid welding |
US9321014B2 (en) | 2011-12-16 | 2016-04-26 | Bl Technologies, Inc. | Hollow fiber membrane with compatible reinforcements |
US9643129B2 (en) | 2011-12-22 | 2017-05-09 | Bl Technologies, Inc. | Non-braided, textile-reinforced hollow fiber membrane |
CN111996638A (en) * | 2019-05-27 | 2020-11-27 | 毛里齐奥·莫尔泰尼 | Wrapping machine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPP790198A0 (en) | 1998-12-23 | 1999-01-28 | Ennio Pty Ltd | A tubular product having a maximum extensible diameter |
GB0224347D0 (en) * | 2002-10-19 | 2002-11-27 | Adria Ltd | Yarn covering apparatus and method |
CN103966734B (en) * | 2014-05-22 | 2015-07-29 | 苏州东茂纺织实业有限公司 | A kind of yarn tension control structure |
Citations (36)
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US4848075A (en) * | 1987-03-14 | 1989-07-18 | Palitex Project Company Gmbh | Method of adjusting the tensile force ratio between an outer thread and an inner thread when manufacturing cabled industrial yarns, and an apparatus for implementing this method |
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1991
- 1991-09-19 AU AU86641/91A patent/AU8664191A/en not_active Abandoned
- 1991-09-19 WO PCT/US1991/006804 patent/WO1992005302A1/en active Application Filing
-
1992
- 1992-03-03 US US07/845,050 patent/US5303550A/en not_active Expired - Fee Related
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US2010888A (en) * | 1930-12-24 | 1935-08-13 | Celanese Corp | Doubling of yarns, threads, or filaments |
US1966585A (en) * | 1931-04-29 | 1934-07-17 | Revere Rubber Co | Process of making covered elastic thread |
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US2561155A (en) * | 1950-02-18 | 1951-07-17 | U S Textile Machine Company | Magnetic bobbin holding means |
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EP0310848A1 (en) * | 1987-10-09 | 1989-04-12 | Fillattice S.P.A. | Method and device for covering yarns |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5515671A (en) * | 1993-03-11 | 1996-05-14 | Hamel Ag | Method for building a specific yarn reserve at a rotating balloon limiter of a multiple twisting spindle and a multiple twisting spindle with rotating balloon limiter |
US6298648B1 (en) * | 1997-06-05 | 2001-10-09 | D'agnolo Armando | Multiple twist spindle |
AU764940B2 (en) * | 1998-12-23 | 2003-09-04 | Adria Limited | Yarn covering apparatus and method |
US6718748B1 (en) | 1998-12-23 | 2004-04-13 | Adria Limited | Yarn covering apparatus and method |
US7926254B2 (en) | 2003-04-25 | 2011-04-19 | Textronics, Inc. | Electrically conductive elastic composite yarn, methods for making the same, and articles incorporating the same |
US20090145533A1 (en) * | 2003-04-25 | 2009-06-11 | Textronics Inc. | Electrically conductive elastic composite yarn, methods for making the same, and articles incorporating the same |
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US9643129B2 (en) | 2011-12-22 | 2017-05-09 | Bl Technologies, Inc. | Non-braided, textile-reinforced hollow fiber membrane |
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Also Published As
Publication number | Publication date |
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WO1992005302A1 (en) | 1992-04-02 |
AU8664191A (en) | 1992-04-15 |
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